51347475200 has 216 divisors, whose sum is σ = 149179639392. Its totient is φ = 17128488960.

The previous prime is 51347475173. The next prime is 51347475203. The reversal of 51347475200 is 257474315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51347475203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1642112 + ... + 1673088.

Almost surely, 2^51347475200 is an apocalyptic number.

51347475200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51347475200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74589819696).

51347475200 is an abundant number, since it is smaller than the sum of its proper divisors (97832164192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51347475200 is a wasteful number, since it uses less digits than its factorization.

51347475200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31047 (or 31028 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The spelling of 51347475200 in words is "fifty-one billion, three hundred forty-seven million, four hundred seventy-five thousand, two hundred".